ios – 允许使用AFNetworking的无效证书

AFhttprequestOperation *operation = [[AFhttprequestOperation alloc]initWithrequest:request];
operation.allowsInvalidSSLCertificate=YES;

现在我将AFNetworking更改为2.0的最新版本.使用AFhttprequestOperation,operation.allowsInvalidSSLCertificate不再工作.根据我使用的文件

AFhttprequestOperationManager *manager = [AFhttprequestOperationManager manager];
manager.securityPolicy.allowInvalidCertificates = YES;

我的请求代码是

AFhttprequestOperation *operation = [[AFhttprequestOperation alloc]initWithrequest:request];

[operation  setCompletionBlockWithsuccess:^(AFhttprequestOperation *operation,id responSEObject) {

    NSLog (@"success: %@",operation.responseString);

}
                                  failure:^(AFhttprequestOperation *operation,NSError *error) {
                                      NSLog(@"error: %@",error.description);
                                  }
 ];

[operation start];
[operation waitUntilFinished];

但是,这对于需要证书的httpS不起作用.我该怎么办才能使这项工作？